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相关概念视频

Protein Folding01:22

Protein Folding

Overview
Protein Folding01:25

Protein Folding

Proteins are chains of amino acids linked together by peptide bonds. Upon synthesis, a protein folds into a three-dimensional conformation, critical to its biological function. Interactions between its constituent amino acids guide protein folding, and hence the protein structure is primarily dependent on its amino acid sequence.
Protein Structure Is Critical to Its Biological Function
Proteins perform a wide range of biological functions such as catalyzing chemical reactions, providing...
Protein Folding01:22

Protein Folding

Overview
Protein and Protein Structure02:15

Protein and Protein Structure

Proteins are one of the most abundant organic molecules in living systems and have the most diverse range of functions of all macromolecules. Proteins may be structural, regulatory, contractile, or protective. They may serve in transport, storage, or membranes; or they may be toxins or enzymes. Their structures, like their functions, vary greatly. They are all, however, amino acid polymers arranged in a linear sequence.
A protein's shape is critical to its function. For example, an enzyme can...
Protein Organization01:13

Protein Organization

Overview
Protein Organization01:24

Protein Organization

Proteins are polymers of amino acid residues. They are versatile and responsible for different cellular functions, including DNA replication, molecular transport, catalysis, and structural support. Proteins have a hierarchical structure comprising at least three levels of organization: primary, secondary, and tertiary structure. Some large proteins have a quaternary structure where individual protein subunits are linked together.
The primary structure of a protein is its amino acid sequence.

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相关实验视频

Updated: May 8, 2026

A Protocol for Computer-Based Protein Structure and Function Prediction
16:41

A Protocol for Computer-Based Protein Structure and Function Prediction

Published on: November 3, 2011

从异质的脊椎形成的类似蛋白质的三级折叠行为.

Zachary E Reinert1, George A Lengyel, W Seth Horne

  • 1Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA.

Journal of the American Chemical Society
|August 14, 2013
PubMed
概括

研究人员创造了模仿自然蛋白质的合成折叠体. 这种新的基于序列的方法使得非自然的脊椎能够实现复杂的蛋白质类三级折叠,从而推进生物仿真设计.

科学领域:

  • 生物化学 生物化学
  • 合成生物学 合成生物学
  • 蛋白质工程是指蛋白质工程.

背景情况:

  • 蛋白质是具有复杂结构和功能的必不可少的生物分子.
  • 人工合成剂正在开发中,以模仿天然蛋白质.
  • 设计像蛋白质一样折叠的非自然分子,特别是具有三级结构的分子,仍然是一个重大挑战.

研究的目的:

  • 开发一种基于序列的策略,用于创建模仿自然蛋白质三级结构的合成折叠体.
  • 设计能够折叠成复杂的,类似蛋白质的三维形状的非自然脊柱寡合体.
  • 为了证明将天然蛋白质转化为具有部分非自然脊柱的类似物,同时保持折叠行为的可行性.

主要方法:

  • 使用基于序列的设计方法来指导非自然脊柱寡合物的折叠.
  • 修改自然蛋白质的序列,以包含大约20%的非自然构件.
  • 分析改性蛋白与母蛋白相似的折叠行为和结构相似性.

主要成果:

  • 成功设计了一种基于序列的方法,用于创建具有类似蛋白质的三级结构的折叠体.
  • 开发了一种蛋白质模拟物,其骨干由约20%的非自然构件组成.
  • 证明了非自然的模拟物表现出类似于原始天然蛋白质的折叠行为.

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Formation of Ordered Biomolecular Structures by the Self-assembly of Short Peptides
07:26

Formation of Ordered Biomolecular Structures by the Self-assembly of Short Peptides

Published on: November 21, 2013

相关实验视频

Last Updated: May 8, 2026

A Protocol for Computer-Based Protein Structure and Function Prediction
16:41

A Protocol for Computer-Based Protein Structure and Function Prediction

Published on: November 3, 2011

Investigating Protein Sequence-structure-dynamics Relationships with Bio3D-web
09:51

Investigating Protein Sequence-structure-dynamics Relationships with Bio3D-web

Published on: July 16, 2017

Formation of Ordered Biomolecular Structures by the Self-assembly of Short Peptides
07:26

Formation of Ordered Biomolecular Structures by the Self-assembly of Short Peptides

Published on: November 21, 2013

结论:

  • 基于序列的策略可以使非自然的脊柱实现复杂的三级折叠,模仿自然蛋白质.
  • 有可能创建功能性蛋白质类似物,其部分非自然的脊柱保留了原生折叠模式.
  • 这项工作代表了生物仿真化学和蛋白质工程领域的重大进展.